Physical quantities and dimensional equation

 $M^0LT^{-2}$  IS THE DIMENTIONAL FORMULA OF

• velocity

• work

• force

• acceleration

 $MLT^{-2}+MLT^{-1}$  THE RESULT OF THIS SUM. IS:

•  $2MLT^{-2}$  

•  $M^2L^2T^{-3}$  

•  $MLT^{-2}$  

• can not be added

 $if\ x=LT^{-1}\ and\ y=MLT^{-1}\$  thus xy dimentions is :

•  $ML^2T^{-2}$  

•  $MLT^{-2}$  

•  $MLT^{-1}$  

•  $MLT$  

the metric unit for temperature is :

• C

• F

• K

• degree

the unit of mass in franch system of units is:

• pound

• kg

• ounce

• g

if work calculated by  ( w = mad)  what is the dimensional formula of work:

m= mass , a = acceleration , d= distance

•  $M^0LT^{-1}$  

•  $ML^2T^{-1}$  

•  $ML^2T^{-2}$  

•  $M^0L^2T^{-2}$  

the suitable tool to measure the duration of aircraft flight

• clock

• digital clock

• stopwatch

• cesium atomic clock



 $0.02\mu s\ is\ equivlant\ to\ ................ks$  

•  $2\times10^{-12}$  

•  $20\times10^{-11}$  

•  $2\times10^{-11}$  

•  $2\times10^{-10}$  

1000 Gm equivalent to ............... nm

• $10^{22}$

• $10^{20}$

• $10^{21}$

• $10^{18}$

 $2\ m^{3\ }=\ ............\ cm^3$  

•  $2Mcm^3$  

•  $2Gcm^3$  

•  $2\ cm^3$  

•  $2\ ml^3$